2253091816 has 8 divisors (see below), whose sum is σ = 4224547170. Its totient is φ = 1126545904.

The previous prime is 2253091793. The next prime is 2253091817. The reversal of 2253091816 is 6181903522.

2253091816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1402202916 + 850888900 = 37446^2 + 29170^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2253091817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140818231 + ... + 140818246.

Almost surely, 2^2253091816 is an apocalyptic number.

It is an amenable number.

2253091816 is a deficient number, since it is larger than the sum of its proper divisors (1971455354).

2253091816 is a wasteful number, since it uses less digits than its factorization.

2253091816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281636483 (or 281636479 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 2253091816 is about 47466.7443164159. The cubic root of 2253091816 is about 1310.9706335134.

The spelling of 2253091816 in words is "two billion, two hundred fifty-three million, ninety-one thousand, eight hundred sixteen".